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Green E-ATX server motherboard dual EPYC SP5 sockets 24 DDR5 slots

GIGABYTE

GIGABYTE MZ73-LM2 server motherboard dual EPYC 9005/9004 24 DDR5 500W

SKU CH-B7EM-B4EMW MPN MZ73-LM2

Dual AMD EPYC 9005/9004 server board with 24 DDR5 slots, 12-channel memory, 10 Gb/s LAN and PCIe Gen5 expansion

Model MZ73-LM2

  • Dual EPYC 9005/9004 processors deliver up to 192 cores for heavy workloads
  • 12-channel DDR5 with 24 DIMM slots supports high memory capacity
  • Dual 10Gb/s LAN via Broadcom BCM57416 provides fast network connectivity
  • Four PCIe Gen5 x16 slots enable extensive expansion options
  • cTDP up to 500W handles demanding processor power requirements

Dual EPYC server board for high-density compute

The GIGABYTE MZ73-LM2 is an E-ATX dual-socket motherboard built for AMD EPYC 9005 and 9004 series processors with a configurable TDP up to 500W. It targets data-centre workloads that demand maximum core density and memory bandwidth in a single chassis. Buyers needing single-socket operation or consumer-grade features should look elsewhere.

Twelve-channel memory

Twenty-four DDR5 RDIMM slots deliver 12-channel memory architecture per processor, while four PCIe Gen5 x16 slots, two MCIO 8i connectors and one SlimSAS 4i connector provide high-throughput storage and accelerator connectivity. Dual 10GbE LAN via Broadcom BCM57416 and a PCIe Gen5 x4 M.2 slot complete the I/O set. Systems limited to eight DIMMs or PCIe Gen4 cannot use this bandwidth.

Installation follows standard dual-socket server

The board mounts in E-ATX server chassis with SP5 socket alignment and 24 DIMM population rules that require matched modules per channel. Common issues include exceeding the 500W cTDP cooling budget, mismixing RDIMM ranks across channels, and leaving MCIO or SlimSAS cables unseated in dense backplanes. No consumer power connectors or desktop mounting holes are present.

How it compares

Measured against everything we stock in Server & Workstation Boards, at today’s prices. Recalculated every night.

Price $1,052.99
Pricier than about 92% of the 776 comparable items (median $254.49).

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Specifications

Size & build
Shipping weight2.61 kg
Package size406 × 356 × 76 mm

Other versions of this model

2 more in the same range

Questions about this item

What is the maximum configurable TDP for the dual EPYC 9005/9004 processors on this board?

The board supports a configurable TDP of up to 500W for the dual processor configuration.

How many DDR5 RDIMM slots are available and what is the memory channel architecture?

There are 24 DDR5 RDIMM slots arranged in a 12-channel architecture per the dual processor design.

How many PCIe Gen5 x16 expansion slots does the MZ73-LM2 provide for add-in cards?

The motherboard includes four PCIe Gen5 x16 expansion slots for high-bandwidth add-in cards.

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